| abstract |
The fiber concrete material and preparation method thereof that the invention discloses a kind of for 3D printing.The raw material group of the fiber concrete material becomes：7.8 8.4 parts of cement；4.0 6.7 parts of miberal powder；1.3 1.7 parts of silicon ash；4.7 7.7 parts of quartz sand；2.3 2.9 parts of water；0.2 0.39 parts of water-reducing agent；0.0065 0.0168 parts of retarder；0 0.004 parts of thixotropic agent；0.1 0.2 parts of fiber.Fiber concrete material provided by the invention has suitable presetting period and final setting time, higher compression strength, flexural strength and toughness, good workability and thixotropy, effective bonding can be realized between layers, and it will not deform and cave in banking process, it can accomplish for requirement of engineering and condensation and the thixotropic property of Precise spraying fiber concrete material, different print speed and the demand of structure construction can be met. |